Not sure about the cap badge until I find the pictures, but I recall him having two badges, both button hole types. One is now available as a pin badge replica at the DH Museum and the other was very similar to the cap badge but with a small band with the year he started work at DH’s in dark blue numbers. He passed away in 2003 so there’s just my Grandma and I to remember! She’s in New Zealand now so will see what she knows next time I call.